Physico-chemical pretreatment to seawater reverse osmosis (SWRO): organic characterization and membrane autopsy
Identifieur interne :
002F05 ( PascalFrancis/Corpus );
précédent :
002F04;
suivant :
002F06
Physico-chemical pretreatment to seawater reverse osmosis (SWRO): organic characterization and membrane autopsy
Auteurs : H. K. Shon ;
S. Vigneswaran ;
M. H. Zareie ;
R. Ben Aim ;
E. Lee ;
J. Lee ;
J. Cho ;
In S. KimSource :
-
Desalination : (Amsterdam) [ 0011-9164 ] ; 2009.
RBID : Pascal:09-0150389
Descripteurs français
- Pascal (Inist)
- Prétraitement,
Eau mer,
Osmose inverse,
Séparation par membrane,
Microfiltration,
Ultrafiltration,
Nanofiltration,
Poudre,
Charbon actif,
Adsorption,
Fer III Chlorure,
Floculation,
Matière organique,
Ecoulement croisé,
Filtration,
Analyse élémentaire,
Extrait,
Encrassement,
Rugosité,
Dessalement.
English descriptors
- KwdEn :
- Activated carbon,
Adsorption,
Crossflow,
Desalination,
Elementary analysis,
Extract,
Filtration,
Flocculation,
Fouling,
Iron III Chlorides,
Membrane separation,
Microfiltration,
Nanofiltration,
Organic matter,
Powder,
Pretreatment,
Reverse osmosis,
Roughness,
Seawater,
Ultrafiltration.
Abstract
In this study, different pretreatment methods such as microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), powdered activated carbon (PAC) adsorption and ferric chloride (FeCl3) flocculation were evaluated in terms of their capability in removing seawater organic matter (SWOM) and the characteristics of the foulants on the seawater reverse osmosis (SWRO) membranes. A detailed experiment with a crossflow SWRO filtration unit was conducted with SR membrane (MWCO 100 Da) at 60 bar with seawater (conductivity = 48.9 mS/cm) drawn from south-western Korea. The SWOM removal by UF, NF, PAC adsorption and FeCl3 flocculation was 20.3, 28.9, 46 and 23.3%, respectively. SWOM used in this study predominantly consisted of small size organic matter (<1000 Da). A large amount of the hydrophobic fraction present in SWOM was removed by PAC adsorption. The SDI5min significantly decreased from 12.7 (without any pretreatment) to 3.2 (MF), 1.3 (UF), 1.0 (NF) and 4.4 (PAC adsorption). RO filtration of seawater with and without pretreatment showed significant flux decline (normalized flux decline (J/J0) = 0.17 ± 0.02) within 20-h operation. The elemental analyses made on the RO surface after direct RO filtration showed that the relative fraction of the carbon decreased, while sodium (Na), magnesium (Mg), chlorine (Cl) and iron (Fe) elements were found in the foulants extracted from the fouled membrane surface. The average roughness of the clean membrane surface was 41.5 nm. After MF and UF pretreatment, the roughness slightly increased to 54.8 and 55.6 nm, respectively. On the other hand, without any pretreatment, with PAC adsorption and with FeCl3 flocculation, the roughness increased up to 69.7, 66.4 and 110 nm, respectively. It can be concluded that the pretreatment by MF and UF could relatively preserve the RO membrane surface.
Notice en format standard (ISO 2709)
Pour connaître la documentation sur le format Inist Standard.
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| A05 | | | | @2 236 |
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| A06 | | | | @2 1-3 |
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| A08 | 01 | 1 | ENG | @1 Physico-chemical pretreatment to seawater reverse osmosis (SWRO): organic characterization and membrane autopsy |
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| A09 | 01 | 1 | ENG | @1 International Membrane Science and Technology Conference, 5-9 November 2007, Sydney, Australia |
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| A11 | 01 | 1 | | @1 SHON (H. K.) |
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| A11 | 02 | 1 | | @1 VIGNESWARAN (S.) |
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| A11 | 03 | 1 | | @1 ZAREIE (M. H.) |
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| A11 | 04 | 1 | | @1 BEN AIM (R.) |
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| A11 | 05 | 1 | | @1 LEE (E.) |
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| A11 | 06 | 1 | | @1 LEE (J.) |
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| A11 | 07 | 1 | | @1 CHO (J.) |
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| A11 | 08 | 1 | | @1 KIM (In S.) |
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| A12 | 01 | 1 | | @1 CHEN (Vicki) @9 ed. |
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| A12 | 02 | 1 | | @1 LESLIE (Greg) @9 ed. |
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| A12 | 03 | 1 | | @1 LE-CLECH (Pierre) @9 ed. |
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| A12 | 04 | 1 | | @1 HONGYU LI @9 ed. |
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| A14 | 01 | | | @1 Faculty of Engineering/Science, University of Technology @2 Sydney @3 AUS @Z 1 aut. @Z 2 aut. @Z 3 aut. |
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| A14 | 02 | | | @1 Institute National des Sciences Appliquees, Complexe Scientifique de Rangueil @2 31077 Toulouse @3 FRA @Z 4 aut. |
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| A14 | 03 | | | @1 Environmental Science and Technology, Gwangju Institute of Science and Technology @2 Gwangju @3 KOR @Z 5 aut. @Z 6 aut. @Z 7 aut. @Z 8 aut. |
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| A20 | | | | @1 282-290 |
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| A21 | | | | @1 2009 |
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| A23 | 01 | | | @0 ENG |
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| A43 | 01 | | | @1 INIST @2 12906 @5 354000185502110360 |
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| A44 | | | | @0 0000 @1 © 2009 INIST-CNRS. All rights reserved. |
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| A45 | | | | @0 10 ref. |
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| A47 | 01 | 1 | | @0 09-0150389 |
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| A60 | | | | @1 P @2 C |
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| A61 | | | | @0 A |
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| A64 | 01 | 1 | | @0 Desalination : (Amsterdam) |
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| A66 | 01 | | | @0 NLD |
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| C01 | 01 | | ENG | @0 In this study, different pretreatment methods such as microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), powdered activated carbon (PAC) adsorption and ferric chloride (FeCl3) flocculation were evaluated in terms of their capability in removing seawater organic matter (SWOM) and the characteristics of the foulants on the seawater reverse osmosis (SWRO) membranes. A detailed experiment with a crossflow SWRO filtration unit was conducted with SR membrane (MWCO 100 Da) at 60 bar with seawater (conductivity = 48.9 mS/cm) drawn from south-western Korea. The SWOM removal by UF, NF, PAC adsorption and FeCl3 flocculation was 20.3, 28.9, 46 and 23.3%, respectively. SWOM used in this study predominantly consisted of small size organic matter (<1000 Da). A large amount of the hydrophobic fraction present in SWOM was removed by PAC adsorption. The SDI5min significantly decreased from 12.7 (without any pretreatment) to 3.2 (MF), 1.3 (UF), 1.0 (NF) and 4.4 (PAC adsorption). RO filtration of seawater with and without pretreatment showed significant flux decline (normalized flux decline (J/J0) = 0.17 ± 0.02) within 20-h operation. The elemental analyses made on the RO surface after direct RO filtration showed that the relative fraction of the carbon decreased, while sodium (Na), magnesium (Mg), chlorine (Cl) and iron (Fe) elements were found in the foulants extracted from the fouled membrane surface. The average roughness of the clean membrane surface was 41.5 nm. After MF and UF pretreatment, the roughness slightly increased to 54.8 and 55.6 nm, respectively. On the other hand, without any pretreatment, with PAC adsorption and with FeCl3 flocculation, the roughness increased up to 69.7, 66.4 and 110 nm, respectively. It can be concluded that the pretreatment by MF and UF could relatively preserve the RO membrane surface. |
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| C02 | 02 | X | | @0 001D07N |
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| C02 | 03 | X | | @0 001D07K |
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| C02 | 04 | X | | @0 001D07P03 |
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| C03 | 01 | X | FRE | @0 Prétraitement @5 01 |
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| C03 | 01 | X | ENG | @0 Pretreatment @5 01 |
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| C03 | 01 | X | SPA | @0 Pretratamiento @5 01 |
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| C03 | 02 | X | FRE | @0 Eau mer @5 02 |
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| C03 | 02 | X | ENG | @0 Seawater @5 02 |
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| C03 | 02 | X | SPA | @0 Agua mar @5 02 |
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| C03 | 03 | X | FRE | @0 Osmose inverse @5 03 |
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| C03 | 03 | X | ENG | @0 Reverse osmosis @5 03 |
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| C03 | 03 | X | SPA | @0 Osmosis inversa @5 03 |
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| C03 | 04 | X | FRE | @0 Séparation par membrane @5 04 |
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| C03 | 04 | X | ENG | @0 Membrane separation @5 04 |
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| C03 | 04 | X | SPA | @0 Separación por membrana @5 04 |
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| C03 | 05 | X | FRE | @0 Microfiltration @5 05 |
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| C03 | 05 | X | ENG | @0 Microfiltration @5 05 |
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| C03 | 05 | X | SPA | @0 Microfiltración @5 05 |
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| C03 | 06 | X | FRE | @0 Ultrafiltration @5 06 |
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| C03 | 06 | X | ENG | @0 Ultrafiltration @5 06 |
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| C03 | 06 | X | SPA | @0 Ultrafiltración @5 06 |
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| C03 | 07 | X | FRE | @0 Nanofiltration @5 07 |
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| C03 | 07 | X | ENG | @0 Nanofiltration @5 07 |
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| C03 | 07 | X | SPA | @0 Nanofiltración @5 07 |
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| C03 | 08 | X | FRE | @0 Poudre @5 08 |
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| C03 | 08 | X | ENG | @0 Powder @5 08 |
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| C03 | 08 | X | SPA | @0 Polvo @5 08 |
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| C03 | 09 | X | FRE | @0 Charbon actif @5 09 |
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| C03 | 09 | X | ENG | @0 Activated carbon @5 09 |
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| C03 | 09 | X | SPA | @0 Carbón activado @5 09 |
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| C03 | 10 | X | FRE | @0 Adsorption @5 10 |
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| C03 | 10 | X | ENG | @0 Adsorption @5 10 |
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| C03 | 10 | X | SPA | @0 Adsorción @5 10 |
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| C03 | 11 | X | FRE | @0 Fer III Chlorure @2 NC @2 NA @5 11 |
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| C03 | 11 | X | ENG | @0 Iron III Chlorides @2 NC @2 NA @5 11 |
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| C03 | 11 | X | SPA | @0 Hierro III Cloruro @2 NC @2 NA @5 11 |
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| C03 | 12 | X | FRE | @0 Floculation @5 12 |
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| C03 | 12 | X | ENG | @0 Flocculation @5 12 |
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| C03 | 12 | X | SPA | @0 Floculación @5 12 |
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| C03 | 13 | X | FRE | @0 Matière organique @5 13 |
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| C03 | 13 | X | ENG | @0 Organic matter @5 13 |
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| C03 | 13 | X | SPA | @0 Materia orgánica @5 13 |
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| C03 | 14 | X | FRE | @0 Ecoulement croisé @5 14 |
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| C03 | 14 | X | ENG | @0 Crossflow @5 14 |
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| C03 | 14 | X | SPA | @0 Flujo cruzado @5 14 |
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| C03 | 15 | X | FRE | @0 Filtration @5 15 |
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| C03 | 15 | X | ENG | @0 Filtration @5 15 |
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| C03 | 15 | X | SPA | @0 Filtración @5 15 |
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| C03 | 16 | X | FRE | @0 Analyse élémentaire @5 16 |
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| C03 | 16 | X | ENG | @0 Elementary analysis @5 16 |
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| C03 | 16 | X | SPA | @0 Análisis elemental @5 16 |
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| C03 | 17 | X | FRE | @0 Extrait @5 17 |
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| C03 | 17 | X | ENG | @0 Extract @5 17 |
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| C03 | 17 | X | SPA | @0 Extracto @5 17 |
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| C03 | 18 | X | FRE | @0 Encrassement @5 18 |
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| C03 | 18 | X | ENG | @0 Fouling @5 18 |
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| C03 | 18 | X | SPA | @0 Enmugrecimiento @5 18 |
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| C03 | 19 | X | FRE | @0 Rugosité @5 19 |
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| C03 | 19 | X | ENG | @0 Roughness @5 19 |
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| C03 | 19 | X | SPA | @0 Rugosidad @5 19 |
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| C03 | 20 | X | FRE | @0 Dessalement @5 20 |
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| C03 | 20 | X | ENG | @0 Desalination @5 20 |
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| C03 | 20 | X | SPA | @0 Desaladura @5 20 |
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| N21 | | | | @1 103 |
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| N44 | 01 | | | @1 OTO |
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| N82 | | | | @1 OTO |
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|
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| pR |
| A30 | 01 | 1 | ENG | @1 International Membrane Science and Technology Conference (IMSTEC) @2 6 @3 Sydney AUS @4 2007-11-05 |
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|
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Format Inist (serveur)
| NO : | PASCAL 09-0150389 INIST |
|---|
| ET : | Physico-chemical pretreatment to seawater reverse osmosis (SWRO): organic characterization and membrane autopsy |
|---|
| AU : | SHON (H. K.); VIGNESWARAN (S.); ZAREIE (M. H.); BEN AIM (R.); LEE (E.); LEE (J.); CHO (J.); KIM (In S.); CHEN (Vicki); LESLIE (Greg); LE-CLECH (Pierre); HONGYU LI |
|---|
| AF : | Faculty of Engineering/Science, University of Technology/Sydney/Australie (1 aut., 2 aut., 3 aut.); Institute National des Sciences Appliquees, Complexe Scientifique de Rangueil/31077 Toulouse/France (4 aut.); Environmental Science and Technology, Gwangju Institute of Science and Technology/Gwangju/Corée, République de (5 aut., 6 aut., 7 aut., 8 aut.) |
|---|
| DT : | Publication en série; Congrès; Niveau analytique |
|---|
| SO : | Desalination : (Amsterdam); ISSN 0011-9164; Coden DSLNAH; Pays-Bas; Da. 2009; Vol. 236; No. 1-3; Pp. 282-290; Bibl. 10 ref. |
|---|
| LA : | Anglais |
|---|
| EA : | In this study, different pretreatment methods such as microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), powdered activated carbon (PAC) adsorption and ferric chloride (FeCl3) flocculation were evaluated in terms of their capability in removing seawater organic matter (SWOM) and the characteristics of the foulants on the seawater reverse osmosis (SWRO) membranes. A detailed experiment with a crossflow SWRO filtration unit was conducted with SR membrane (MWCO 100 Da) at 60 bar with seawater (conductivity = 48.9 mS/cm) drawn from south-western Korea. The SWOM removal by UF, NF, PAC adsorption and FeCl3 flocculation was 20.3, 28.9, 46 and 23.3%, respectively. SWOM used in this study predominantly consisted of small size organic matter (<1000 Da). A large amount of the hydrophobic fraction present in SWOM was removed by PAC adsorption. The SDI5min significantly decreased from 12.7 (without any pretreatment) to 3.2 (MF), 1.3 (UF), 1.0 (NF) and 4.4 (PAC adsorption). RO filtration of seawater with and without pretreatment showed significant flux decline (normalized flux decline (J/J0) = 0.17 ± 0.02) within 20-h operation. The elemental analyses made on the RO surface after direct RO filtration showed that the relative fraction of the carbon decreased, while sodium (Na), magnesium (Mg), chlorine (Cl) and iron (Fe) elements were found in the foulants extracted from the fouled membrane surface. The average roughness of the clean membrane surface was 41.5 nm. After MF and UF pretreatment, the roughness slightly increased to 54.8 and 55.6 nm, respectively. On the other hand, without any pretreatment, with PAC adsorption and with FeCl3 flocculation, the roughness increased up to 69.7, 66.4 and 110 nm, respectively. It can be concluded that the pretreatment by MF and UF could relatively preserve the RO membrane surface. |
|---|
| CC : | 001D16A04D; 001D07N; 001D07K; 001D07P03 |
|---|
| FD : | Prétraitement; Eau mer; Osmose inverse; Séparation par membrane; Microfiltration; Ultrafiltration; Nanofiltration; Poudre; Charbon actif; Adsorption; Fer III Chlorure; Floculation; Matière organique; Ecoulement croisé; Filtration; Analyse élémentaire; Extrait; Encrassement; Rugosité; Dessalement |
|---|
| ED : | Pretreatment; Seawater; Reverse osmosis; Membrane separation; Microfiltration; Ultrafiltration; Nanofiltration; Powder; Activated carbon; Adsorption; Iron III Chlorides; Flocculation; Organic matter; Crossflow; Filtration; Elementary analysis; Extract; Fouling; Roughness; Desalination |
|---|
| SD : | Pretratamiento; Agua mar; Osmosis inversa; Separación por membrana; Microfiltración; Ultrafiltración; Nanofiltración; Polvo; Carbón activado; Adsorción; Hierro III Cloruro; Floculación; Materia orgánica; Flujo cruzado; Filtración; Análisis elemental; Extracto; Enmugrecimiento; Rugosidad; Desaladura |
|---|
| LO : | INIST-12906.354000185502110360 |
|---|
| ID : | 09-0150389 |
|---|
Links to Exploration step
Pascal:09-0150389
Le document en format XML
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</inist:fA14><series><title level="j" type="main">Desalination : (Amsterdam)</title>
<title level="j" type="abbreviated">Desalination : (Amst.)</title>
<idno type="ISSN">0011-9164</idno>
<imprint><date when="2009">2009</date>
</imprint><seriesStmt><title level="j" type="main">Desalination : (Amsterdam)</title>
<title level="j" type="abbreviated">Desalination : (Amst.)</title>
<idno type="ISSN">0011-9164</idno>
</seriesStmt><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Activated carbon</term>
<term>Adsorption</term>
<term>Crossflow</term>
<term>Desalination</term>
<term>Elementary analysis</term>
<term>Extract</term>
<term>Filtration</term>
<term>Flocculation</term>
<term>Fouling</term>
<term>Iron III Chlorides</term>
<term>Membrane separation</term>
<term>Microfiltration</term>
<term>Nanofiltration</term>
<term>Organic matter</term>
<term>Powder</term>
<term>Pretreatment</term>
<term>Reverse osmosis</term>
<term>Roughness</term>
<term>Seawater</term>
<term>Ultrafiltration</term>
</keywords><keywords scheme="Pascal" xml:lang="fr"><term>Prétraitement</term>
<term>Eau mer</term>
<term>Osmose inverse</term>
<term>Séparation par membrane</term>
<term>Microfiltration</term>
<term>Ultrafiltration</term>
<term>Nanofiltration</term>
<term>Poudre</term>
<term>Charbon actif</term>
<term>Adsorption</term>
<term>Fer III Chlorure</term>
<term>Floculation</term>
<term>Matière organique</term>
<term>Ecoulement croisé</term>
<term>Filtration</term>
<term>Analyse élémentaire</term>
<term>Extrait</term>
<term>Encrassement</term>
<term>Rugosité</term>
<term>Dessalement</term>
</keywords><front><div type="abstract" xml:lang="en">In this study, different pretreatment methods such as microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), powdered activated carbon (PAC) adsorption and ferric chloride (FeCl<sub>3</sub>
) flocculation were evaluated in terms of their capability in removing seawater organic matter (SWOM) and the characteristics of the foulants on the seawater reverse osmosis (SWRO) membranes. A detailed experiment with a crossflow SWRO filtration unit was conducted with SR membrane (MWCO 100 Da) at 60 bar with seawater (conductivity = 48.9 mS/cm) drawn from south-western Korea. The SWOM removal by UF, NF, PAC adsorption and FeCl<sub>3</sub>
flocculation was 20.3, 28.9, 46 and 23.3%, respectively. SWOM used in this study predominantly consisted of small size organic matter (<1000 Da). A large amount of the hydrophobic fraction present in SWOM was removed by PAC adsorption. The SDI<sub>5min</sub>
significantly decreased from 12.7 (without any pretreatment) to 3.2 (MF), 1.3 (UF), 1.0 (NF) and 4.4 (PAC adsorption). RO filtration of seawater with and without pretreatment showed significant flux decline (normalized flux decline (J/J<sub>0</sub>
) = 0.17 ± 0.02) within 20-h operation. The elemental analyses made on the RO surface after direct RO filtration showed that the relative fraction of the carbon decreased, while sodium (Na), magnesium (Mg), chlorine (Cl) and iron (Fe) elements were found in the foulants extracted from the fouled membrane surface. The average roughness of the clean membrane surface was 41.5 nm. After MF and UF pretreatment, the roughness slightly increased to 54.8 and 55.6 nm, respectively. On the other hand, without any pretreatment, with PAC adsorption and with FeCl<sub>3</sub>
flocculation, the roughness increased up to 69.7, 66.4 and 110 nm, respectively. It can be concluded that the pretreatment by MF and UF could relatively preserve the RO membrane surface.</div><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0011-9164</s0>
</fA01><fA02 i1="01"><s0>DSLNAH</s0>
</fA02><fA03 i2="1"><s0>Desalination : (Amst.)</s0>
</fA03><fA05><s2>236</s2>
</fA05><fA06><s2>1-3</s2>
</fA06><fA08 i1="01" i2="1" l="ENG"><s1>Physico-chemical pretreatment to seawater reverse osmosis (SWRO): organic characterization and membrane autopsy</s1>
</fA08><fA09 i1="01" i2="1" l="ENG"><s1>International Membrane Science and Technology Conference, 5-9 November 2007, Sydney, Australia</s1>
</fA09><fA11 i1="01" i2="1"><s1>SHON (H. K.)</s1>
</fA11><fA11 i1="02" i2="1"><s1>VIGNESWARAN (S.)</s1>
</fA11><fA11 i1="03" i2="1"><s1>ZAREIE (M. H.)</s1>
</fA11><fA11 i1="04" i2="1"><s1>BEN AIM (R.)</s1>
</fA11><fA11 i1="05" i2="1"><s1>LEE (E.)</s1>
</fA11><fA11 i1="06" i2="1"><s1>LEE (J.)</s1>
</fA11><fA11 i1="07" i2="1"><s1>CHO (J.)</s1>
</fA11><fA11 i1="08" i2="1"><s1>KIM (In S.)</s1>
</fA11><fA12 i1="01" i2="1"><s1>CHEN (Vicki)</s1>
<s9>ed.</s9>
</fA12><fA12 i1="02" i2="1"><s1>LESLIE (Greg)</s1>
<s9>ed.</s9>
</fA12><fA12 i1="03" i2="1"><s1>LE-CLECH (Pierre)</s1>
<s9>ed.</s9>
</fA12><fA12 i1="04" i2="1"><s1>HONGYU LI</s1>
<s9>ed.</s9>
</fA12><fA14 i1="01"><s1>Faculty of Engineering/Science, University of Technology</s1>
<s2>Sydney</s2>
<s3>AUS</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
</fA14><fA14 i1="02"><s1>Institute National des Sciences Appliquees, Complexe Scientifique de Rangueil</s1>
<s2>31077 Toulouse</s2>
<s3>FRA</s3>
<sZ>4 aut.</sZ>
</fA14><fA14 i1="03"><s1>Environmental Science and Technology, Gwangju Institute of Science and Technology</s1>
<s2>Gwangju</s2>
<s3>KOR</s3>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
<sZ>8 aut.</sZ>
</fA14><fA20><s1>282-290</s1>
</fA20><fA21><s1>2009</s1>
</fA21><fA23 i1="01"><s0>ENG</s0>
</fA23><fA43 i1="01"><s1>INIST</s1>
<s2>12906</s2>
<s5>354000185502110360</s5>
</fA43><fA44><s0>0000</s0>
<s1>© 2009 INIST-CNRS. All rights reserved.</s1>
</fA44><fA45><s0>10 ref.</s0>
</fA45><fA47 i1="01" i2="1"><s0>09-0150389</s0>
</fA47><fA60><s1>P</s1>
<s2>C</s2>
</fA60><fA64 i1="01" i2="1"><s0>Desalination : (Amsterdam)</s0>
</fA64><fA66 i1="01"><s0>NLD</s0>
</fA66><fC01 i1="01" l="ENG"><s0>In this study, different pretreatment methods such as microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), powdered activated carbon (PAC) adsorption and ferric chloride (FeCl<sub>3</sub>
) flocculation were evaluated in terms of their capability in removing seawater organic matter (SWOM) and the characteristics of the foulants on the seawater reverse osmosis (SWRO) membranes. A detailed experiment with a crossflow SWRO filtration unit was conducted with SR membrane (MWCO 100 Da) at 60 bar with seawater (conductivity = 48.9 mS/cm) drawn from south-western Korea. The SWOM removal by UF, NF, PAC adsorption and FeCl<sub>3</sub>
flocculation was 20.3, 28.9, 46 and 23.3%, respectively. SWOM used in this study predominantly consisted of small size organic matter (<1000 Da). A large amount of the hydrophobic fraction present in SWOM was removed by PAC adsorption. The SDI<sub>5min</sub>
significantly decreased from 12.7 (without any pretreatment) to 3.2 (MF), 1.3 (UF), 1.0 (NF) and 4.4 (PAC adsorption). RO filtration of seawater with and without pretreatment showed significant flux decline (normalized flux decline (J/J<sub>0</sub>
) = 0.17 ± 0.02) within 20-h operation. The elemental analyses made on the RO surface after direct RO filtration showed that the relative fraction of the carbon decreased, while sodium (Na), magnesium (Mg), chlorine (Cl) and iron (Fe) elements were found in the foulants extracted from the fouled membrane surface. The average roughness of the clean membrane surface was 41.5 nm. After MF and UF pretreatment, the roughness slightly increased to 54.8 and 55.6 nm, respectively. On the other hand, without any pretreatment, with PAC adsorption and with FeCl<sub>3</sub>
flocculation, the roughness increased up to 69.7, 66.4 and 110 nm, respectively. It can be concluded that the pretreatment by MF and UF could relatively preserve the RO membrane surface.</s0><fC02 i1="01" i2="X"><s0>001D16A04D</s0>
</fC02><fC02 i1="02" i2="X"><s0>001D07N</s0>
</fC02><fC02 i1="03" i2="X"><s0>001D07K</s0>
</fC02><fC02 i1="04" i2="X"><s0>001D07P03</s0>
</fC02><fC03 i1="01" i2="X" l="FRE"><s0>Prétraitement</s0>
<s5>01</s5>
</fC03><fC03 i1="01" i2="X" l="ENG"><s0>Pretreatment</s0>
<s5>01</s5>
</fC03><fC03 i1="01" i2="X" l="SPA"><s0>Pretratamiento</s0>
<s5>01</s5>
</fC03><fC03 i1="02" i2="X" l="FRE"><s0>Eau mer</s0>
<s5>02</s5>
</fC03><fC03 i1="02" i2="X" l="ENG"><s0>Seawater</s0>
<s5>02</s5>
</fC03><fC03 i1="02" i2="X" l="SPA"><s0>Agua mar</s0>
<s5>02</s5>
</fC03><fC03 i1="03" i2="X" l="FRE"><s0>Osmose inverse</s0>
<s5>03</s5>
</fC03><fC03 i1="03" i2="X" l="ENG"><s0>Reverse osmosis</s0>
<s5>03</s5>
</fC03><fC03 i1="03" i2="X" l="SPA"><s0>Osmosis inversa</s0>
<s5>03</s5>
</fC03><fC03 i1="04" i2="X" l="FRE"><s0>Séparation par membrane</s0>
<s5>04</s5>
</fC03><fC03 i1="04" i2="X" l="ENG"><s0>Membrane separation</s0>
<s5>04</s5>
</fC03><fC03 i1="04" i2="X" l="SPA"><s0>Separación por membrana</s0>
<s5>04</s5>
</fC03><fC03 i1="05" i2="X" l="FRE"><s0>Microfiltration</s0>
<s5>05</s5>
</fC03><fC03 i1="05" i2="X" l="ENG"><s0>Microfiltration</s0>
<s5>05</s5>
</fC03><fC03 i1="05" i2="X" l="SPA"><s0>Microfiltración</s0>
<s5>05</s5>
</fC03><fC03 i1="06" i2="X" l="FRE"><s0>Ultrafiltration</s0>
<s5>06</s5>
</fC03><fC03 i1="06" i2="X" l="ENG"><s0>Ultrafiltration</s0>
<s5>06</s5>
</fC03><fC03 i1="06" i2="X" l="SPA"><s0>Ultrafiltración</s0>
<s5>06</s5>
</fC03><fC03 i1="07" i2="X" l="FRE"><s0>Nanofiltration</s0>
<s5>07</s5>
</fC03><fC03 i1="07" i2="X" l="ENG"><s0>Nanofiltration</s0>
<s5>07</s5>
</fC03><fC03 i1="07" i2="X" l="SPA"><s0>Nanofiltración</s0>
<s5>07</s5>
</fC03><fC03 i1="08" i2="X" l="FRE"><s0>Poudre</s0>
<s5>08</s5>
</fC03><fC03 i1="08" i2="X" l="ENG"><s0>Powder</s0>
<s5>08</s5>
</fC03><fC03 i1="08" i2="X" l="SPA"><s0>Polvo</s0>
<s5>08</s5>
</fC03><fC03 i1="09" i2="X" l="FRE"><s0>Charbon actif</s0>
<s5>09</s5>
</fC03><fC03 i1="09" i2="X" l="ENG"><s0>Activated carbon</s0>
<s5>09</s5>
</fC03><fC03 i1="09" i2="X" l="SPA"><s0>Carbón activado</s0>
<s5>09</s5>
</fC03><fC03 i1="10" i2="X" l="FRE"><s0>Adsorption</s0>
<s5>10</s5>
</fC03><fC03 i1="10" i2="X" l="ENG"><s0>Adsorption</s0>
<s5>10</s5>
</fC03><fC03 i1="10" i2="X" l="SPA"><s0>Adsorción</s0>
<s5>10</s5>
</fC03><fC03 i1="11" i2="X" l="FRE"><s0>Fer III Chlorure</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>11</s5>
</fC03><fC03 i1="11" i2="X" l="ENG"><s0>Iron III Chlorides</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>11</s5>
</fC03><fC03 i1="11" i2="X" l="SPA"><s0>Hierro III Cloruro</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>11</s5>
</fC03><fC03 i1="12" i2="X" l="FRE"><s0>Floculation</s0>
<s5>12</s5>
</fC03><fC03 i1="12" i2="X" l="ENG"><s0>Flocculation</s0>
<s5>12</s5>
</fC03><fC03 i1="12" i2="X" l="SPA"><s0>Floculación</s0>
<s5>12</s5>
</fC03><fC03 i1="13" i2="X" l="FRE"><s0>Matière organique</s0>
<s5>13</s5>
</fC03><fC03 i1="13" i2="X" l="ENG"><s0>Organic matter</s0>
<s5>13</s5>
</fC03><fC03 i1="13" i2="X" l="SPA"><s0>Materia orgánica</s0>
<s5>13</s5>
</fC03><fC03 i1="14" i2="X" l="FRE"><s0>Ecoulement croisé</s0>
<s5>14</s5>
</fC03><fC03 i1="14" i2="X" l="ENG"><s0>Crossflow</s0>
<s5>14</s5>
</fC03><fC03 i1="14" i2="X" l="SPA"><s0>Flujo cruzado</s0>
<s5>14</s5>
</fC03><fC03 i1="15" i2="X" l="FRE"><s0>Filtration</s0>
<s5>15</s5>
</fC03><fC03 i1="15" i2="X" l="ENG"><s0>Filtration</s0>
<s5>15</s5>
</fC03><fC03 i1="15" i2="X" l="SPA"><s0>Filtración</s0>
<s5>15</s5>
</fC03><fC03 i1="16" i2="X" l="FRE"><s0>Analyse élémentaire</s0>
<s5>16</s5>
</fC03><fC03 i1="16" i2="X" l="ENG"><s0>Elementary analysis</s0>
<s5>16</s5>
</fC03><fC03 i1="16" i2="X" l="SPA"><s0>Análisis elemental</s0>
<s5>16</s5>
</fC03><fC03 i1="17" i2="X" l="FRE"><s0>Extrait</s0>
<s5>17</s5>
</fC03><fC03 i1="17" i2="X" l="ENG"><s0>Extract</s0>
<s5>17</s5>
</fC03><fC03 i1="17" i2="X" l="SPA"><s0>Extracto</s0>
<s5>17</s5>
</fC03><fC03 i1="18" i2="X" l="FRE"><s0>Encrassement</s0>
<s5>18</s5>
</fC03><fC03 i1="18" i2="X" l="ENG"><s0>Fouling</s0>
<s5>18</s5>
</fC03><fC03 i1="18" i2="X" l="SPA"><s0>Enmugrecimiento</s0>
<s5>18</s5>
</fC03><fC03 i1="19" i2="X" l="FRE"><s0>Rugosité</s0>
<s5>19</s5>
</fC03><fC03 i1="19" i2="X" l="ENG"><s0>Roughness</s0>
<s5>19</s5>
</fC03><fC03 i1="19" i2="X" l="SPA"><s0>Rugosidad</s0>
<s5>19</s5>
</fC03><fC03 i1="20" i2="X" l="FRE"><s0>Dessalement</s0>
<s5>20</s5>
</fC03><fC03 i1="20" i2="X" l="ENG"><s0>Desalination</s0>
<s5>20</s5>
</fC03><fC03 i1="20" i2="X" l="SPA"><s0>Desaladura</s0>
<s5>20</s5>
</fC03><fN21><s1>103</s1>
</fN21><fN44 i1="01"><s1>OTO</s1>
</fN44><fN82><s1>OTO</s1>
</fN82><pR><fA30 i1="01" i2="1" l="ENG"><s1>International Membrane Science and Technology Conference (IMSTEC)</s1>
<s2>6</s2>
<s3>Sydney AUS</s3>
<s4>2007-11-05</s4>
</fA30><server><NO>PASCAL 09-0150389 INIST</NO>
<ET>Physico-chemical pretreatment to seawater reverse osmosis (SWRO): organic characterization and membrane autopsy</ET>
<AU>SHON (H. K.); VIGNESWARAN (S.); ZAREIE (M. H.); BEN AIM (R.); LEE (E.); LEE (J.); CHO (J.); KIM (In S.); CHEN (Vicki); LESLIE (Greg); LE-CLECH (Pierre); HONGYU LI</AU>
<AF>Faculty of Engineering/Science, University of Technology/Sydney/Australie (1 aut., 2 aut., 3 aut.); Institute National des Sciences Appliquees, Complexe Scientifique de Rangueil/31077 Toulouse/France (4 aut.); Environmental Science and Technology, Gwangju Institute of Science and Technology/Gwangju/Corée, République de (5 aut., 6 aut., 7 aut., 8 aut.)</AF>
<DT>Publication en série; Congrès; Niveau analytique</DT>
<SO>Desalination : (Amsterdam); ISSN 0011-9164; Coden DSLNAH; Pays-Bas; Da. 2009; Vol. 236; No. 1-3; Pp. 282-290; Bibl. 10 ref.</SO>
<LA>Anglais</LA>
<EA>In this study, different pretreatment methods such as microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), powdered activated carbon (PAC) adsorption and ferric chloride (FeCl<sub>3</sub>
) flocculation were evaluated in terms of their capability in removing seawater organic matter (SWOM) and the characteristics of the foulants on the seawater reverse osmosis (SWRO) membranes. A detailed experiment with a crossflow SWRO filtration unit was conducted with SR membrane (MWCO 100 Da) at 60 bar with seawater (conductivity = 48.9 mS/cm) drawn from south-western Korea. The SWOM removal by UF, NF, PAC adsorption and FeCl<sub>3</sub>
flocculation was 20.3, 28.9, 46 and 23.3%, respectively. SWOM used in this study predominantly consisted of small size organic matter (<1000 Da). A large amount of the hydrophobic fraction present in SWOM was removed by PAC adsorption. The SDI<sub>5min</sub>
significantly decreased from 12.7 (without any pretreatment) to 3.2 (MF), 1.3 (UF), 1.0 (NF) and 4.4 (PAC adsorption). RO filtration of seawater with and without pretreatment showed significant flux decline (normalized flux decline (J/J<sub>0</sub>
) = 0.17 ± 0.02) within 20-h operation. The elemental analyses made on the RO surface after direct RO filtration showed that the relative fraction of the carbon decreased, while sodium (Na), magnesium (Mg), chlorine (Cl) and iron (Fe) elements were found in the foulants extracted from the fouled membrane surface. The average roughness of the clean membrane surface was 41.5 nm. After MF and UF pretreatment, the roughness slightly increased to 54.8 and 55.6 nm, respectively. On the other hand, without any pretreatment, with PAC adsorption and with FeCl<sub>3</sub>
flocculation, the roughness increased up to 69.7, 66.4 and 110 nm, respectively. It can be concluded that the pretreatment by MF and UF could relatively preserve the RO membrane surface.</EA><CC>001D16A04D; 001D07N; 001D07K; 001D07P03</CC>
<FD>Prétraitement; Eau mer; Osmose inverse; Séparation par membrane; Microfiltration; Ultrafiltration; Nanofiltration; Poudre; Charbon actif; Adsorption; Fer III Chlorure; Floculation; Matière organique; Ecoulement croisé; Filtration; Analyse élémentaire; Extrait; Encrassement; Rugosité; Dessalement</FD>
<ED>Pretreatment; Seawater; Reverse osmosis; Membrane separation; Microfiltration; Ultrafiltration; Nanofiltration; Powder; Activated carbon; Adsorption; Iron III Chlorides; Flocculation; Organic matter; Crossflow; Filtration; Elementary analysis; Extract; Fouling; Roughness; Desalination</ED>
<SD>Pretratamiento; Agua mar; Osmosis inversa; Separación por membrana; Microfiltración; Ultrafiltración; Nanofiltración; Polvo; Carbón activado; Adsorción; Hierro III Cloruro; Floculación; Materia orgánica; Flujo cruzado; Filtración; Análisis elemental; Extracto; Enmugrecimiento; Rugosidad; Desaladura</SD>
<LO>INIST-12906.354000185502110360</LO>
<ID>09-0150389</ID>
</server>
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